The day in photos: Washington, D.C.

Jewel Samad / AFP/Getty Images

A boy gives an extra lift to a replica of the moon outside the Newseum in Washington, D.C.. As the world marked the 40th anniversary of the first lunar landing on July 20, astronauts urged Americans to take inspiration from the Apollo program and go back to the moon and beyond -- to Mars.

A boy gives an extra lift to a replica of the moon outside the Newseum in Washington, D.C.. As the world marked the 40th anniversary of the first lunar landing on July 20, astronauts urged Americans to take inspiration from the Apollo program and go back to the moon and beyond -- to Mars.